11212101012111 has 8 divisors (see below), whose sum is σ = 14949493368960. Its totient is φ = 7474721331672.

The previous prime is 11212101012109. The next prime is 11212101012113. The reversal of 11212101012111 is 11121010121211.

It is an interprime number because it is at equal distance from previous prime (11212101012109) and next prime (11212101012113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11212101012111 - 2¹ = 11212101012109 is a prime.

It is a super-2 number, since 2×11212101012111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212101012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866245 + ... + 4813998.

It is an arithmetic number, because the mean of its divisors is an integer number (1868686671120).

Almost surely, 2^{11212101012111} is an apocalyptic number.

11212101012111 is a deficient number, since it is larger than the sum of its proper divisors (3737392356849).

11212101012111 is an equidigital number, since it uses as much as digits as its factorization.

11212101012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338205.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11212101012111 its reverse (11121010121211), we get a palindrome (22333111133322).

The spelling of 11212101012111 in words is "eleven trillion, two hundred twelve billion, one hundred one million, twelve thousand, one hundred eleven".